arch/mips/gt64120/ev64120/promcon.c

   1 /*
   2  * Wrap-around code for a console using the
   3  * SGI PROM io-routines.
   4  *
   5  * Copyright (c) 1999 Ulf Carlsson
   6  *
   7  * Derived from DECstation promcon.c
   8  * Copyright (c) 1998 Harald Koerfgen
   9  */
  10 #include <linux/tty.h>
  11 #include <linux/init.h>
  12 #include <linux/console.h>
  13
  14 static void prom_console_write(struct console *co, const char *s,
  15                                unsigned count)
  16 {
  17         extern int CONSOLE_CHANNEL;     // The default serial port
  18         unsigned i;
  19
  20         for (i = 0; i < count; i++) {
  21                 if (*s == 10)
  22                         serial_putc(CONSOLE_CHANNEL, 13);
  23                 serial_putc(CONSOLE_CHANNEL, *s++);
  24         }
  25 }
  26
  27 int prom_getchar(void)
  28 {
  29         return 0;
  30 }
  31
  32 static struct console sercons = {
  33     .name       = "ttyS",
  34     .write      = prom_console_write,
  35     .flags      = CON_PRINTBUFFER,
  36     .index      = -1,
  37 };
  38
  39 /*
  40  *    Register console.
  41  */
  42
  43 static int gal_serial_console_init(void)
  44 {
  45         //  serial_init();
  46         //serial_set(115200);
  47
  48         register_console(&sercons);
  49
  50         return 0;
  51 }
  52
  53 console_initcall(gal_serial_console_init);